Home / 5,113.70-7,670.55-4,190.30

Finding the Fourth Proportional to 5,113.70, 7,670.55 and 4,190.30

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Solution

The fourth proportional to 5,113.70, 7,670.55 and 4,190.30 is: 6,285.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,113.70 : 7,670.55 = 4,190.30 : x
  2. Step 2: Convert to fraction form
    5,113.70/7,670.55 = 4,190.30/x
  3. Step 3: Cross multiply
    5,113.70x = 7,670.55 × 4,190.30
  4. Step 4: Simplify right side
    5,113.70x = 32,141,905.67
  5. Step 5: Solve for x
    x = 32,141,905.67/5,113.70
  6. Step 6: Final answer
    x = 6,285.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.